CATH Classification

Domain Context

CATH Clusters

Superfamily Isopropylmalate Dehydrogenase
Functional Family Isocitrate dehydrogenase [NADP]

Enzyme Information

1.1.1.42
Isocitrate dehydrogenase (NADP(+)).
based on mapping to UniProt O88844
Isocitrate + NADP(+) = 2-oxoglutarate + CO(2) + NADPH.
-!- Unlike EC 1.1.1.41, oxalosuccinate can be used as a substrate. -!- In eukaryotes, isocitrate dehydrogenase exists in two forms: an NAD(+)-linked enzyme found only in mitochondria and displaying allosteric properties, and a non-allosteric, NADP(+)-linked enzyme that is found in both mitochondria and cytoplasm. -!- The enzyme from some species can also use NAD(+) but much more slowly.

UniProtKB Entries (1)

O88844
IDHC_MOUSE
Mus musculus
Isocitrate dehydrogenase [NADP] cytoplasmic

PDB Structure

PDB 5YZH
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
NADP+-dependent cytosolic isocitrate dehydrogenase provides NADPH in the presence of cadmium due to the moderate chelating effect of glutathione.
Cho, H.J., Cho, H.Y., Park, J.W., Kwon, O.S., Lee, H.S., Huh, T.L., Kang, B.S.
J. Biol. Inorg. Chem.